/*
 * 飞易腾科技 - 创新网站样式
 * 版本: 2.0
 */

:root {
  --primary-color: #6366f1;
  --secondary-color: #f59e0b;
  --accent-color: #ec4899;
  --dark-bg: #0f172a;
  --dark-card: #1e293b;
  --text-dark: #1e293b;
  --text-light: #64748b;
  --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --gradient-4: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
  --gradient-5: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
  background: #f8fafc;
}

body.dark-mode {
  background-color: var(--dark-bg);
  color: #e2e8f0;
}

/* ==================== 创新导航栏 ==================== */
.navbar {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
  padding: 0.8rem 0;
}

body.dark-mode .navbar {
  background: rgba(15, 23, 42, 0.7);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.85);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
  padding: 0.5rem 0;
}

body.dark-mode .navbar.scrolled {
  background: rgba(15, 23, 42, 0.9);
}

.navbar-brand {
  font-size: 1.6rem;
  font-weight: 800;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--accent-color)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
}

.navbar-brand:hover {
  transform: scale(1.05);
}

.navbar-brand i {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--accent-color)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: float 3s ease-in-out infinite;
}
#mobileMenu {
  display: none;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-5px);
  }
}

.nav-link {
  font-weight: 500;
  margin: 0 1rem;
  transition: all 0.3s ease;
  position: relative;
  color: var(--text-dark) !important;
  padding: 0.5rem 1rem !important;
  border-radius: 10px;
}

body.dark-mode .nav-link {
  color: #e2e8f0 !important;
}

.nav-link::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  background: var(--gradient-1);
  transition: width 0.3s ease;
  border-radius: 3px;
}

.nav-link:hover::before,
.nav-link.active::before {
  width: 80%;
}

.nav-link:hover {
  background: rgba(99, 102, 241, 0.1);
  transform: translateY(-2px);
}

/* 创新的暗黑模式切换按钮 */
.dark-mode-toggle {
  cursor: pointer;
  font-size: 1.3rem;
  padding: 0.6rem;
  border-radius: 50%;
  transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  background: linear-gradient(135deg, #ffd89b 0%, #19547b 100%);
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.dark-mode-toggle:hover {
  transform: rotate(180deg) scale(1.1);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* ==================== Hero区创新设计 ==================== */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* 创新的网格背景 */
.mesh-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
      circle at 20% 50%,
      rgba(99, 102, 241, 0.3) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 80% 80%,
      rgba(236, 72, 153, 0.3) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 40% 20%,
      rgba(245, 158, 11, 0.2) 0%,
      transparent 50%
    );
  animation: meshMove 15s ease-in-out infinite;
}

@keyframes meshMove {
  0%,
  100% {
    transform: scale(1) rotate(0deg);
  }
  50% {
    transform: scale(1.1) rotate(5deg);
  }
}

.particles-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 1;
}

.particle {
  position: absolute;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  animation: float-particles 20s infinite;
}

@keyframes float-particles {
  0%,
  100% {
    transform: translateY(0) translateX(0);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-1000px) translateX(500px);
    opacity: 0;
  }
}

.hero-content {
  position: relative;
  z-index: 2;
  color: white;
}

.hero-title {
  font-size: 4.5rem;
  font-weight: 900;
  margin-bottom: 1.5rem;
  animation: fadeInUp 1s ease;
  background: linear-gradient(135deg, #fff 0%, rgba(255, 255, 255, 0.8) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.5rem;
  font-weight: 300;
  margin-bottom: 2.5rem;
  animation: fadeInUp 1s ease 0.2s both;
  opacity: 0.95;
}

.cta-button {
  padding: 1.2rem 3rem;
  font-size: 1.1rem;
  font-weight: 600;
  border-radius: 50px;
  border: none;
  background: linear-gradient(
    135deg,
    var(--secondary-color),
    var(--accent-color)
  );
  color: white;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  animation: fadeInUp 1s ease 0.4s both;
  box-shadow: 0 10px 30px rgba(245, 158, 11, 0.4);
  position: relative;
  overflow: hidden;
}

.cta-button::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.cta-button:hover::before {
  width: 300px;
  height: 300px;
}

.cta-button:hover {
  transform: translateY(-5px) scale(1.05);
  box-shadow: 0 20px 40px rgba(245, 158, 11, 0.5);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==================== 创新服务卡片 ==================== */
section {
  padding: 6rem 0;
  position: relative;
}

.section-title {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 1rem;
  text-align: center;
  position: relative;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--accent-color)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--text-light);
  text-align: center;
  margin-bottom: 4rem;
}

body.dark-mode .section-subtitle {
  color: #94a3b8;
}

/* 创新的服务卡片设计 */
.service-card {
  padding: 3rem 2.5rem;
  border-radius: 30px;
  background: white;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
  transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
  margin-bottom: 2rem;
  border: 1px solid rgba(99, 102, 241, 0.1);
}

body.dark-mode .service-card {
  background: var(--dark-card);
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--card-gradient);
  opacity: 0;
  transition: opacity 0.5s ease;
  z-index: 0;
}

.service-card:nth-child(1) {
  --card-gradient: var(--gradient-1);
}
.service-card:nth-child(2) {
  --card-gradient: var(--gradient-2);
}
.service-card:nth-child(3) {
  --card-gradient: var(--gradient-3);
}
.service-card:nth-child(4) {
  --card-gradient: var(--gradient-4);
}
.service-card:nth-child(5) {
  --card-gradient: var(--gradient-5);
}

.service-card:hover {
  transform: translateY(-15px) scale(1.03);
  box-shadow: 0 30px 60px rgba(99, 102, 241, 0.25);
}

.service-card:hover::before {
  opacity: 0.15;
}

.service-icon-wrapper {
  width: 80px;
  height: 80px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  background: var(--card-gradient);
  transition: all 0.5s ease;
  position: relative;
  z-index: 1;
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.service-card:hover .service-icon-wrapper {
  transform: rotateY(360deg) scale(1.1);
}

.service-icon {
  font-size: 2.5rem;
  color: white;
  transition: all 0.5s ease;
}

.service-card h3 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
}

.service-card p {
  color: var(--text-light);
  position: relative;
  z-index: 1;
  line-height: 1.8;
}

body.dark-mode .service-card p {
  color: #94a3b8;
}

.service-features {
  list-style: none;
  margin-top: 1.5rem;
  position: relative;
  z-index: 1;
}

.service-features li {
  padding: 0.5rem 0;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.service-features li::before {
  content: "✓";
  color: var(--primary-color);
  font-weight: bold;
  font-size: 1.2rem;
}

/* ==================== 案例展示创新设计 ==================== */
.case-card {
  border-radius: 25px;
  overflow: hidden;
  background: white;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  margin-bottom: 2rem;
  cursor: pointer;
  position: relative;
}

body.dark-mode .case-card {
  background: var(--dark-card);
}

.case-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--accent-color)
  );
  opacity: 0;
  transition: opacity 0.4s ease;
}

.case-card:hover::after {
  opacity: 0.1;
}

.case-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 25px 50px rgba(99, 102, 241, 0.2);
}

.case-image-wrapper {
  position: relative;
  overflow: hidden;
  height: 280px;
}

.case-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.case-card:hover .case-image {
  transform: scale(1.15) rotate(2deg);
}

.case-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.7) 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.case-card:hover .case-overlay {
  opacity: 1;
}

.case-overlay-btn {
  padding: 0.8rem 2rem;
  background: white;
  color: var(--primary-color);
  border-radius: 30px;
  font-weight: 600;
  transform: translateY(20px);
  transition: transform 0.4s ease;
}

.case-card:hover .case-overlay-btn {
  transform: translateY(0);
}

.case-content {
  padding: 2rem;
  position: relative;
  z-index: 1;
}

.case-category {
  display: inline-block;
  padding: 0.4rem 1.2rem;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--accent-color)
  );
  color: white;
  border-radius: 20px;
  font-size: 0.85rem;
  margin-bottom: 1rem;
  font-weight: 600;
}

.case-card h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
}

/* ==================== 资讯模块创新设计 ==================== */
.news-card {
  background: white;
  border-radius: 25px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  margin-bottom: 2rem;
  display: flex;
  flex-direction: column;
  height: 100%;
  border: 1px solid rgba(99, 102, 241, 0.1);
}

body.dark-mode .news-card {
  background: var(--dark-card);
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.news-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(99, 102, 241, 0.2);
}

.news-image-wrapper {
  position: relative;
  overflow: hidden;
  height: 220px;
}

.news-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.news-card:hover .news-image {
  transform: scale(1.1);
}

.news-date {
  position: absolute;
  top: 15px;
  right: 15px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: 0.8rem 1.2rem;
  border-radius: 15px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.news-date .day {
  display: block;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary-color);
  line-height: 1;
}

.news-date .month {
  display: block;
  font-size: 0.85rem;
  color: var(--text-light);
  margin-top: 0.2rem;
}

.news-content {
  padding: 2rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.news-category {
  display: inline-block;
  padding: 0.3rem 1rem;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--accent-color)
  );
  color: white;
  border-radius: 15px;
  font-size: 0.8rem;
  margin-bottom: 1rem;
  font-weight: 600;
  width: fit-content;
}

.news-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.4;
}

.news-card p {
  color: var(--text-light);
  margin-bottom: 1.5rem;
  flex-grow: 1;
  line-height: 1.7;
}

body.dark-mode .news-card p {
  color: #94a3b8;
}

.news-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

body.dark-mode .news-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.news-author {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.author-avatar {
  width: 35px;
  height: 35px;
  border-radius: 50%;
  object-fit: cover;
}

.author-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-dark);
}

body.dark-mode .author-name {
  color: #e2e8f0;
}

.read-more {
  color: var(--primary-color);
  font-weight: 600;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
}

.read-more:hover {
  gap: 0.8rem;
  color: var(--accent-color);
}

/* ==================== 筛选按钮创新设计 ==================== */
.filter-buttons {
  text-align: center;
  margin-bottom: 3rem;
}

.filter-btn {
  padding: 0.8rem 2rem;
  margin: 0.5rem;
  border: 2px solid transparent;
  background: white;
  color: var(--text-dark);
  border-radius: 30px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  font-weight: 600;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  position: relative;
  overflow: hidden;
}

body.dark-mode .filter-btn {
  background: var(--dark-card);
  color: #e2e8f0;
}

.filter-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--accent-color)
  );
  transition: left 0.4s ease;
  z-index: -1;
}

.filter-btn:hover::before,
.filter-btn.active::before {
  left: 0;
}

.filter-btn:hover,
.filter-btn.active {
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}

/* ==================== 技术栈创新设计 ==================== */
.tech-stack {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-radius: 30px;
  padding: 3.5rem;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
}

.tech-stack::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.1) 0%,
    transparent 70%
  );
  animation: rotate 20s linear infinite;
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.skill-bar {
  margin-bottom: 2.5rem;
  position: relative;
  z-index: 1;
}

.skill-name {
  font-weight: 600;
  margin-bottom: 0.8rem;
  display: flex;
  justify-content: space-between;
  font-size: 1.1rem;
}

.skill-progress {
  height: 14px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.1);
}

.skill-progress-bar {
  height: 100%;
  background: linear-gradient(
    90deg,
    var(--secondary-color),
    var(--accent-color)
  );
  border-radius: 10px;
  transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
  width: 0;
  position: relative;
  overflow: hidden;
}

.skill-progress-bar::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

.skill-progress-bar.animate {
  width: var(--skill-width);
}

/* ==================== 客户评价创新设计 ==================== */
.testimonial-card {
  background: white;
  padding: 2.5rem;
  border-radius: 25px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  margin: 1rem;
  position: relative;
  transition: all 0.4s ease;
  border: 1px solid rgba(99, 102, 241, 0.1);
}

body.dark-mode .testimonial-card {
  background: var(--dark-card);
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.testimonial-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(99, 102, 241, 0.15);
}

.testimonial-quote {
  font-size: 4rem;
  color: var(--primary-color);
  opacity: 0.15;
  position: absolute;
  top: 10px;
  left: 20px;
}

.testimonial-content {
  position: relative;
  z-index: 1;
  padding-top: 2rem;
}

.rating {
  color: var(--secondary-color);
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.testimonial-author {
  display: flex;
  align-items: center;
  margin-top: 1.5rem;
}

.author-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  margin-right: 1rem;
  object-fit: cover;
  border: 3px solid var(--primary-color);
}

/* ==================== 联系表单创新设计 ==================== */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 1.8rem;
  position: relative;
}

.form-control {
  width: 100%;
  padding: 1.2rem 3.5rem 1.2rem 1.2rem;
  border: 2px solid #e2e8f0;
  border-radius: 15px;
  font-size: 1rem;
  transition: all 0.3s ease;
  background: white;
}

body.dark-mode .form-control {
  background: var(--dark-card);
  border-color: rgba(99, 102, 241, 0.2);
  color: #e2e8f0;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
  transform: translateY(-2px);
}

.form-icon {
  position: absolute;
  right: 1.2rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-light);
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  font-size: 1.2rem;
}

.form-control:focus + .form-icon {
  color: var(--primary-color);
  transform: translateY(-50%) scale(1.3) rotate(360deg);
}

.submit-btn {
  width: 100%;
  padding: 1.2rem;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--accent-color)
  );
  color: white;
  border: none;
  border-radius: 15px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}

.submit-btn::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.submit-btn:hover::before {
  width: 400px;
  height: 400px;
}

.submit-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 35px rgba(99, 102, 241, 0.4);
}

.submit-btn.loading::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ==================== Footer创新设计 ==================== */
footer {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  color: white;
  padding: 4rem 0 2rem;
  position: relative;
  overflow: hidden;
}

footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
      circle at 20% 50%,
      rgba(99, 102, 241, 0.1) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 80% 80%,
      rgba(236, 72, 153, 0.1) 0%,
      transparent 50%
    );
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.social-icon {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 50%;
  color: white;
  font-size: 1.3rem;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.social-icon:hover {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--accent-color)
  );
  transform: translateY(-8px) rotate(360deg);
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.4);
}

/* ==================== 滚动动画 ==================== */
.fade-in {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  transition-delay: var(--reveal-delay, 0s);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 左右方向进入动画 */
.reveal-left { opacity: 0; transform: translateX(-40px); transition: all .8s cubic-bezier(0.175,0.885,0.32,1.275); transition-delay: var(--reveal-delay,0s); }
.reveal-left.visible { opacity: 1; transform: translateX(0); }
.reveal-right { opacity: 0; transform: translateX(40px); transition: all .8s cubic-bezier(0.175,0.885,0.32,1.275); transition-delay: var(--reveal-delay,0s); }
.reveal-right.visible { opacity: 1; transform: translateX(0); }

/* ==================== 页面加载器 ==================== */
.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-spinner {
  width: 60px;
  height: 60px;
  border: 6px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.2rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .navbar-brand {
    font-size: 1.3rem;
  }

  .mobile-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    padding: 2rem;
    animation: slideDown 0.3s ease;
    z-index: 999;
  }

  body.dark-mode .mobile-menu {
    background: rgba(15, 23, 42, 0.95);
  }

  .mobile-menu.active {
    display: block;
  }

  @keyframes slideDown {
    from {
      opacity: 0;
      transform: translateY(-20px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .mobile-menu .nav-link {
    display: block;
    margin: 1rem 0;
    padding: 0.8rem 0;
    border-bottom: 1px solid rgba(99, 102, 241, 0.1);
  }

  .service-card,
  .case-card,
  .news-card {
    margin-bottom: 1.5rem;
  }

  .cta-button {
    padding: 1rem 2rem;
    font-size: 1rem;
  }

  section {
    padding: 3rem 0;
  }

  .tech-stack {
    padding: 2rem;
  }
}

@media (max-width: 576px) {
  .hero-title {
    font-size: 2rem;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .service-card {
    padding: 2rem 1.5rem;
  }

  .filter-btn {
    padding: 0.6rem 1.5rem;
    font-size: 0.9rem;
  }
}

/* ==================== 额外创新元素 ==================== */
.contact-info {
  padding: 2rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 2rem;
}

.contact-item i {
  flex-shrink: 0;
}

/* 渐变文本效果 */
.gradient-text {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--accent-color)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 悬浮动画 */
@keyframes hover-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.float-animation {
  animation: hover-float 3s ease-in-out infinite;
}

/* 脉冲动画 */
@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.pulse-animation {
  animation: pulse 2s ease-in-out infinite;
}

/* ==================== 实力展示模块 ==================== */
.stat-card {
  background: white;
  padding: 2.5rem 1.5rem;
  border-radius: 20px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  border: 1px solid rgba(99, 102, 241, 0.1);
  height: 100%;
}

body.dark-mode .stat-card {
  background: var(--dark-card);
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.stat-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(99, 102, 241, 0.2);
}

.stat-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--accent-color)
  );
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: white;
  transition: all 0.5s ease;
}

.stat-card:hover .stat-icon {
  transform: rotateY(360deg) scale(1.1);
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--primary-color);
  margin: 1rem 0 0.5rem;
}

.stat-label {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 0.5rem;
}

body.dark-mode .stat-label {
  color: #e2e8f0;
}

.stat-desc {
  font-size: 0.85rem;
  color: var(--text-light);
}

body.dark-mode .stat-desc {
  color: #94a3b8;
}

/* 荣誉资质卡片 */
.certificate-card {
  background: white;
  padding: 2.5rem 1.5rem;
  border-radius: 20px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  transition: all 0.4s ease;
  border: 1px solid rgba(99, 102, 241, 0.1);
  height: 100%;
}

body.dark-mode .certificate-card {
  background: var(--dark-card);
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.certificate-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(99, 102, 241, 0.15);
}

.certificate-icon {
  font-size: 3.5rem;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  transition: all 0.5s ease;
}

.certificate-card:hover .certificate-icon {
  transform: scale(1.2) rotateZ(10deg);
  color: var(--accent-color);
}

.certificate-card h4 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
}

.certificate-card p {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 0;
}

body.dark-mode .certificate-card p {
  color: #94a3b8;
}

/* 服务保障卡片 */
.guarantee-card {
  text-align: center;
  padding: 2rem;
  background: white;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  transition: all 0.4s ease;
  border: 1px solid rgba(99, 102, 241, 0.1);
}

body.dark-mode .guarantee-card {
  background: var(--dark-card);
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.guarantee-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(99, 102, 241, 0.15);
}

.guarantee-icon {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  display: block;
  transition: all 0.5s ease;
}

.guarantee-card:hover .guarantee-icon {
  transform: scale(1.15);
  color: var(--accent-color);
}

.guarantee-card h4 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.guarantee-card p {
  color: var(--text-light);
  margin-bottom: 0;
  line-height: 1.8;
}

body.dark-mode .guarantee-card p {
  color: #94a3b8;
}

/* ==================== Footer增强样式 ==================== */
.friendly-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
  padding: 2rem 0;
}

.friendly-link {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  padding: 0.5rem 1.2rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 20px;
  transition: all 0.3s ease;
  font-size: 0.95rem;
}

.friendly-link:hover {
  color: white;
  border-color: var(--primary-color);
  background: rgba(99, 102, 241, 0.2);
  transform: translateY(-2px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 3rem;
  margin-top: 3rem;
}

.qrcode-section {
  display: flex;
  justify-content: center;
  gap: 2rem;
}

.qrcode-item {
  text-align: center;
}

.qrcode-placeholder {
  width: 120px;
  height: 120px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 15px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.5rem;
  border: 2px dashed rgba(255, 255, 255, 0.3);
  transition: all 0.3s ease;
}

.qrcode-placeholder:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--primary-color);
  transform: scale(1.05);
}

.qrcode-placeholder p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.85rem;
}

.beian-info {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

.beian-link {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color 0.3s ease;
}

.beian-link:hover {
  color: white;
  text-decoration: underline;
}

.footer-disclaimer {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  margin-top: 3rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
}

/* 响应式优化 */
@media (max-width: 768px) {
  .stat-card {
    padding: 2rem 1rem;
  }

  .stat-number {
    font-size: 2.5rem;
  }

  .stat-icon {
    width: 60px;
    height: 60px;
    font-size: 2rem;
  }

  .certificate-card,
  .guarantee-card {
    padding: 2rem 1.5rem;
  }

  .friendly-links {
    gap: 1rem;
  }

  .friendly-link {
    padding: 0.4rem 1rem;
    font-size: 0.85rem;
  }

  .qrcode-section {
    gap: 1rem;
  }

  .qrcode-placeholder {
    width: 100px;
    height: 100px;
  }

  .qrcode-placeholder i {
    font-size: 3rem !important;
  }

  .beian-info {
    font-size: 0.8rem;
  }
}

@media (max-width: 576px) {
  .stat-card {
    margin-bottom: 1rem;
  }

  .certificate-icon {
    font-size: 2.5rem;
  }

  .guarantee-icon {
    font-size: 2.5rem;
  }
}

/* ==================== 页面头部样式 ==================== */
.page-header {
  padding: 150px 0 100px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  position: relative;
  overflow: hidden;
}

.page-header .mesh-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
      circle at 20% 50%,
      rgba(255, 255, 255, 0.2) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 80% 80%,
      rgba(255, 255, 255, 0.15) 0%,
      transparent 50%
    );
  animation: meshMove 20s ease-in-out infinite alternate;
}

.page-header h1 {
  color: white;
  position: relative;
  z-index: 2;
}

.page-header p {
  color: rgba(255, 255, 255, 0.9);
  position: relative;
  z-index: 2;
}

.breadcrumb {
  position: relative;
  z-index: 2;
}

.breadcrumb-item {
  color: rgba(255, 255, 255, 0.8);
}

.breadcrumb-item a {
  color: white;
  text-decoration: none;
  transition: all 0.3s ease;
}

.breadcrumb-item a:hover {
  color: var(--secondary-color);
}

.breadcrumb-item.active {
  color: rgba(255, 255, 255, 0.9);
}

.breadcrumb-item + .breadcrumb-item::before {
  color: rgba(255, 255, 255, 0.6);
}

/* ==================== 服务详情卡片 ==================== */
.service-detail-card {
  background: white;
  border-radius: 20px;
  padding: 3rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
  transition: all 0.4s ease;
  height: 100%;
}

body.dark-mode .service-detail-card {
  background: var(--dark-card);
}

.service-detail-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 60px rgba(99, 102, 241, 0.15);
}

.service-detail-icon {
  width: 100px;
  height: 100px;
  border-radius: 25px;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--accent-color)
  );
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2rem;
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.service-detail-icon i {
  font-size: 3rem;
  color: white;
}

.service-detail-card h2 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

body.dark-mode .service-detail-card h2 {
  color: white;
}

.service-detail-content {
  margin-top: 2rem;
}

.service-detail-content h4 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.service-detail-content ul {
  list-style: none;
  padding: 0;
}

.service-detail-content ul li {
  padding: 0.5rem 0;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

body.dark-mode .service-detail-content ul li {
  color: #cbd5e1;
}

.service-detail-content ul li i {
  color: var(--primary-color);
  font-size: 1.2rem;
}

/* ==================== 响应式优化 ==================== */
@media (max-width: 768px) {
  .page-header {
    padding: 120px 0 80px;
  }

  .service-detail-card {
    padding: 2rem;
    margin-bottom: 2rem;
  }

  .service-detail-icon {
    width: 80px;
    height: 80px;
  }

  .service-detail-icon i {
    font-size: 2.5rem;
  }

  .service-detail-card h2 {
    font-size: 1.5rem;
  }
}

/* ==================== 优化Hero Section ==================== */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* 背景图片虚化 */
.hero-bg-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  filter: blur(8px);
  transform: scale(1.1);
  opacity: 0.3;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(99, 102, 241, 0.9) 0%,
    rgba(118, 75, 162, 0.85) 100%
  );
  z-index: 1;
}

/* 科技网格背景 */
.tech-grid {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(
      rgba(255, 255, 255, 0.05) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 50px 50px;
  z-index: 2;
  animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(50px, 50px);
  }
}

/* 浮动元素 */
.floating-elements {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
}

.float-circle,
.float-square {
  position: absolute;
  border: 2px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
}

.float-circle {
  border-radius: 50%;
}

.float-square {
  border-radius: 15px;
  transform: rotate(45deg);
}

.float-1 {
  width: 300px;
  height: 300px;
  top: 10%;
  left: 5%;
  animation: floatAnimation 20s ease-in-out infinite;
}

.float-2 {
  width: 200px;
  height: 200px;
  bottom: 15%;
  right: 10%;
  animation: floatAnimation 15s ease-in-out infinite reverse;
}

.float-3 {
  width: 150px;
  height: 150px;
  top: 60%;
  left: 15%;
  animation: floatAnimation 18s ease-in-out infinite;
}

.float-4 {
  width: 120px;
  height: 120px;
  top: 20%;
  right: 20%;
  animation: floatAnimation 25s ease-in-out infinite;
}

.float-5 {
  width: 180px;
  height: 180px;
  bottom: 30%;
  left: 8%;
  animation: floatAnimation 22s ease-in-out infinite reverse;
}

@keyframes floatAnimation {
  0%,
  100% {
    transform: translateY(0) rotate(0deg);
    opacity: 0.3;
  }
  25% {
    transform: translateY(-30px) rotate(5deg);
    opacity: 0.5;
  }
  50% {
    transform: translateY(-60px) rotate(-5deg);
    opacity: 0.3;
  }
  75% {
    transform: translateY(-30px) rotate(3deg);
    opacity: 0.5;
  }
}

/* Hero内容 */
.hero-content {
  position: relative;
  z-index: 10;
  padding: 2rem 1rem;
}

.hero-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.6rem 1.5rem;
  border-radius: 50px;
  color: white;
  font-size: 0.9rem;
  margin-bottom: 2rem;
  animation: fadeInDown 1s ease-out;
}

.hero-badge i {
  color: #ffd700;
  margin-right: 0.5rem;
}

.hero-title {
  font-size: 4rem;
  font-weight: 900;
  color: white;
  margin-bottom: 1.5rem;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  animation: fadeInUp 1s ease-out 0.2s both;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.4rem;
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: 3rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  animation: fadeInUp 1s ease-out 0.4s both;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero-buttons {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  margin-bottom: 4rem;
  animation: fadeInUp 1s ease-out 0.6s both;
}

.cta-primary {
  background: white;
  color: var(--primary-color);
  box-shadow: 0 10px 40px rgba(255, 255, 255, 0.3);
}

.cta-primary:hover {
  background: #f8f9ff;
  transform: translateY(-3px);
  box-shadow: 0 15px 50px rgba(255, 255, 255, 0.4);
}

.cta-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10px);
}

.cta-secondary:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: white;
  transform: translateY(-3px);
}

/* Hero统计数据 */
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
  animation: fadeInUp 1s ease-out 0.8s both;
}

.hero-stat-item {
  text-align: center;
  padding: 1.5rem 2rem;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 15px;
  transition: all 0.3s ease;
}

.hero-stat-item:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-5px);
}

.hero-stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: white;
  margin-bottom: 0.5rem;
}

.hero-stat-label {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
}

/* 滚动指示器 */
.hero-scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.8);
  z-index: 10;
  animation: bounce 2s infinite;
}

.scroll-mouse {
  width: 30px;
  height: 50px;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 25px;
  position: relative;
}

.scroll-wheel {
  width: 4px;
  height: 10px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 2px;
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  animation: scrollWheel 2s infinite;
}

@keyframes scrollWheel {
  0% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateX(-50%) translateY(15px);
  }
}

@keyframes bounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateY(-10px);
  }
  60% {
    transform: translateX(-50%) translateY(-5px);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==================== 优化新闻展示 ==================== */
.news-item {
  background: white;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  transition: all 0.4s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

body.dark-mode .news-item {
  background: var(--dark-card);
}

.news-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(99, 102, 241, 0.2);
}

.news-item-image {
  position: relative;
  width: 100%;
  height: 240px;
  overflow: hidden;
}

.news-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.news-item:hover .news-item-image img {
  transform: scale(1.1);
}

.news-item-date {
  position: absolute;
  top: 15px;
  right: 15px;
  background: rgba(99, 102, 241, 0.95);
  color: white;
  padding: 0.4rem 0.8rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  backdrop-filter: blur(10px);
}

.news-item-content {
  padding: 1.8rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.news-item-tags {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.news-tag {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--accent-color)
  );
  color: white;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.news-item-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-dark);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

body.dark-mode .news-item-title {
  color: white;
}

.news-item-desc {
  color: var(--text-light);
  margin-bottom: 1.5rem;
  line-height: 1.7;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

body.dark-mode .news-item-desc {
  color: #cbd5e1;
}

.news-item-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
}

body.dark-mode .news-item-meta {
  border-top-color: rgba(255, 255, 255, 0.1);
}

.news-item-meta span {
  color: var(--text-light);
  font-size: 0.9rem;
}

body.dark-mode .news-item-meta span {
  color: #94a3b8;
}

.news-item-meta i {
  margin-right: 0.3rem;
}

.news-read-more {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.3s ease;
}

.news-read-more:hover {
  color: var(--accent-color);
}

.news-read-more i {
  transition: transform 0.3s ease;
}

.news-read-more:hover i {
  transform: translateX(5px);
}

/* 服务特点列表样式优化 */
.service-features {
  list-style: none;
  padding: 0;
  margin-top: 1.5rem;
}

.service-features li {
  padding: 0.6rem 0;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-size: 0.95rem;
}

body.dark-mode .service-features li {
  color: #cbd5e1;
}

.service-features li i {
  color: var(--primary-color);
  font-size: 0.9rem;
  min-width: 16px;
}

/* 响应式优化 */
@media (max-width: 992px) {
  .hero-title {
    font-size: 3rem;
  }

  .hero-subtitle {
    font-size: 1.2rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .cta-button {
    width: 100%;
    max-width: 300px;
  }

  .hero-stats {
    gap: 1.5rem;
  }

  .hero-stat-item {
    padding: 1rem 1.5rem;
  }

  .float-1,
  .float-2,
  .float-3,
  .float-4,
  .float-5 {
    width: 150px;
    height: 150px;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.2rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

  .hero-stat-number {
    font-size: 2rem;
  }

  .news-item-image {
    height: 200px;
  }

  .tech-grid {
    background-size: 30px 30px;
  }
}

@media (max-width: 576px) {
  .hero-title {
    font-size: 1.8rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-stat-item {
    flex: 1 1 45%;
    padding: 0.8rem 1rem;
  }

  .hero-stat-number {
    font-size: 1.8rem;
  }

  .hero-stat-label {
    font-size: 0.8rem;
  }

  .float-1,
  .float-2,
  .float-3,
  .float-4,
  .float-5 {
    width: 80px;
    height: 80px;
  }
}

/* ==================== 案例详情页样式 ==================== */
.case-card-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.case-detail-header {
  padding: 2rem 0;
}

.case-detail-category {
  display: inline-block;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--accent-color)
  );
  color: white;
  padding: 0.5rem 1.2rem;
  border-radius: 25px;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.case-detail-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  color: var(--text-dark);
}

body.dark-mode .case-detail-title {
  color: white;
}

.case-detail-meta {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  color: var(--text-light);
  font-size: 0.95rem;
}

body.dark-mode .case-detail-meta {
  color: #cbd5e1;
}

.case-detail-meta span i {
  margin-right: 0.5rem;
  color: var(--primary-color);
}

/* 案例图片轮播 */
.case-gallery {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.case-gallery .carousel-inner {
  border-radius: 20px;
}

.case-gallery .carousel-item img {
  height: 500px;
  object-fit: cover;
  border-radius: 20px;
}

.carousel-control-prev,
.carousel-control-next {
  width: 60px;
  height: 60px;
  background: rgba(99, 102, 241, 0.9);
  border-radius: 50%;
  top: 50%;
  transform: translateY(-50%);
  opacity: 0;
  transition: all 0.3s ease;
}

.case-gallery:hover .carousel-control-prev,
.case-gallery:hover .carousel-control-next {
  opacity: 1;
}

.carousel-control-prev {
  left: 20px;
}

.carousel-control-next {
  right: 20px;
}

.carousel-indicators {
  margin-bottom: 1.5rem;
}

.carousel-indicators button {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin: 0 5px;
}

/* 案例内容 */
.case-detail-content {
  color: var(--text-light);
  line-height: 1.8;
}

body.dark-mode .case-detail-content {
  color: #cbd5e1;
}

.case-detail-content h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-dark);
  position: relative;
  padding-left: 20px;
}

body.dark-mode .case-detail-content h2 {
  color: white;
}

.case-detail-content h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 80%;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--accent-color)
  );
  border-radius: 3px;
}

.case-detail-content h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary-color);
}

.case-features-list {
  list-style: none;
  padding: 0;
}

.case-features-list li {
  padding: 0.8rem 0;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.case-features-list li i {
  color: var(--primary-color);
  font-size: 1.3rem;
  margin-top: 0.2rem;
}

/* 案例成果卡片 */
.case-result-card {
  background: white;
  padding: 2rem 1.5rem;
  border-radius: 15px;
  text-align: center;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
}

body.dark-mode .case-result-card {
  background: var(--dark-card);
}

.case-result-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.2);
}

.case-result-number {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--accent-color)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem;
}

.case-result-label {
  color: var(--text-light);
  font-size: 0.95rem;
}

body.dark-mode .case-result-label {
  color: #cbd5e1;
}

/* 技术标签 */
.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.tech-tag {
  background: linear-gradient(
    135deg,
    rgba(99, 102, 241, 0.1),
    rgba(236, 72, 153, 0.1)
  );
  color: var(--primary-color);
  padding: 0.6rem 1.2rem;
  border-radius: 25px;
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid rgba(99, 102, 241, 0.2);
  transition: all 0.3s ease;
}

.tech-tag:hover {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--accent-color)
  );
  color: white;
  transform: translateY(-2px);
}

/* 侧边栏 */
.case-sidebar {
  position: sticky;
  top: 100px;
}

.case-sidebar-card {
  background: white;
  border-radius: 20px;
  padding: 2rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

body.dark-mode .case-sidebar-card {
  background: var(--dark-card);
}

.case-sidebar-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--text-dark);
}

body.dark-mode .case-sidebar-title {
  color: white;
}

.case-info-item {
  padding: 0.8rem 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

body.dark-mode .case-info-item {
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

.case-info-item:last-child {
  border-bottom: none;
}

.case-info-item strong {
  color: var(--text-dark);
  margin-right: 0.5rem;
}

body.dark-mode .case-info-item strong {
  color: white;
}

.case-info-item span {
  color: var(--text-light);
}

body.dark-mode .case-info-item span {
  color: #cbd5e1;
}

/* 相关案例 */
.related-case-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  cursor: pointer;
}

body.dark-mode .related-case-item {
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

.related-case-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.related-case-item:hover {
  transform: translateX(5px);
}

.related-case-item img {
  width: 80px;
  height: 80px;
  border-radius: 10px;
  object-fit: cover;
}

.related-case-info h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
  color: var(--text-dark);
}

body.dark-mode .related-case-info h4 {
  color: white;
}

.related-case-info p {
  font-size: 0.85rem;
  color: var(--text-light);
  margin: 0;
}

body.dark-mode .related-case-info p {
  color: #cbd5e1;
}

/* 分页样式 */
.pagination {
  gap: 0.5rem;
}

.page-link {
  color: var(--primary-color);
  border: 2px solid rgba(99, 102, 241, 0.2);
  border-radius: 10px;
  padding: 0.6rem 1.2rem;
  font-weight: 600;
  transition: all 0.3s ease;
}

.page-link:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
  transform: translateY(-2px);
}

.page-item.active .page-link {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--accent-color)
  );
  border-color: var(--primary-color);
  box-shadow: 0 5px 15px rgba(99, 102, 241, 0.3);
}

.page-item.disabled .page-link {
  opacity: 0.5;
  cursor: not-allowed;
}

/* 响应式优化 */
@media (max-width: 992px) {
  .case-sidebar {
    position: relative;
    top: 0;
    margin-top: 3rem;
  }

  .case-detail-title {
    font-size: 2rem;
  }

  .case-gallery .carousel-item img {
    height: 350px;
  }
}

@media (max-width: 768px) {
  .case-detail-title {
    font-size: 1.8rem;
  }

  .case-detail-meta {
    flex-direction: column;
    gap: 0.8rem;
  }

  .case-gallery .carousel-item img {
    height: 250px;
  }

  .carousel-control-prev,
  .carousel-control-next {
    width: 40px;
    height: 40px;
  }

  .case-result-number {
    font-size: 2rem;
  }
}

/* ==================== 新闻详情页样式 ==================== */
.news-detail-article {
  background: white;
  border-radius: 25px;
  padding: 3rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
  margin-bottom: 3rem;
}

body.dark-mode .news-detail-article {
  background: var(--dark-card);
}

.news-detail-header {
  margin-bottom: 2.5rem;
}

.news-detail-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 1.5rem;
  line-height: 1.3;
}

body.dark-mode .news-detail-title {
  color: white;
}

.news-detail-meta {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  color: var(--text-light);
  font-size: 0.95rem;
  padding-bottom: 1.5rem;
  border-bottom: 2px solid rgba(99, 102, 241, 0.1);
}

body.dark-mode .news-detail-meta {
  color: #cbd5e1;
  border-bottom-color: rgba(99, 102, 241, 0.2);
}

.news-detail-meta span i {
  margin-right: 0.5rem;
  color: var(--primary-color);
}

.news-detail-cover {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.news-detail-cover img {
  width: 100%;
  height: auto;
  transition: transform 0.5s ease;
}

.news-detail-cover:hover img {
  transform: scale(1.05);
}

.news-detail-content {
  font-size: 1.1rem;
  line-height: 1.9;
  color: var(--text-light);
}

body.dark-mode .news-detail-content {
  color: #cbd5e1;
}

.news-detail-content .lead {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: 2.5rem;
  padding: 1.5rem;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(236, 72, 153, 0.05));
  border-left: 4px solid var(--primary-color);
  border-radius: 10px;
}

body.dark-mode .news-detail-content .lead {
  color: white;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.1));
}

.news-detail-content h2 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-dark);
  margin: 2.5rem 0 1.5rem;
  padding-left: 20px;
  position: relative;
}

body.dark-mode .news-detail-content h2 {
  color: white;
}

.news-detail-content h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 80%;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  border-radius: 3px;
}

.news-detail-content p {
  margin-bottom: 1.5rem;
}

.news-blockquote {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(236, 72, 153, 0.08));
  border-left: 5px solid var(--primary-color);
  padding: 2rem;
  margin: 2.5rem 0;
  font-size: 1.2rem;
  font-style: italic;
  color: var(--text-dark);
  border-radius: 10px;
  position: relative;
}

body.dark-mode .news-blockquote {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(236, 72, 153, 0.15));
  color: white;
}

.news-blockquote::before {
  content: "\f10d";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  top: 1.5rem;
  left: 1.5rem;
  font-size: 2.5rem;
  color: var(--primary-color);
  opacity: 0.2;
}

.news-image-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin: 2.5rem 0;
}

.news-image-grid img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-radius: 15px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.news-image-grid img:hover {
  transform: translateY(-5px);
}

.news-detail-tags-section {
  margin: 3rem 0;
  padding: 2rem 0;
  border-top: 2px solid rgba(99, 102, 241, 0.1);
  border-bottom: 2px solid rgba(99, 102, 241, 0.1);
}

body.dark-mode .news-detail-tags-section {
  border-top-color: rgba(99, 102, 241, 0.2);
  border-bottom-color: rgba(99, 102, 241, 0.2);
}

.news-detail-tags-section h4 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--text-dark);
}

body.dark-mode .news-detail-tags-section h4 {
  color: white;
}

.news-detail-share {
  margin-top: 3rem;
  padding: 2rem;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(236, 72, 153, 0.05));
  border-radius: 15px;
}

body.dark-mode .news-detail-share {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.1));
}

.news-detail-share h4 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--text-dark);
}

body.dark-mode .news-detail-share h4 {
  color: white;
}

.share-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.share-btn {
  padding: 0.8rem 1.5rem;
  border-radius: 25px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.share-wechat {
  background: #07c160;
  color: white;
}

.share-wechat:hover {
  background: #06ad56;
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(7, 193, 96, 0.3);
}

.share-weibo {
  background: #e6162d;
  color: white;
}

.share-weibo:hover {
  background: #d01426;
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(230, 22, 45, 0.3);
}

.share-qq {
  background: #12b7f5;
  color: white;
}

.share-qq:hover {
  background: #10a5dc;
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(18, 183, 245, 0.3);
}

.share-link {
  background: var(--primary-color);
  color: white;
}

.share-link:hover {
  background: var(--accent-color);
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(99, 102, 241, 0.3);
  color: white;
}

/* 侧边栏样式 */
.news-sidebar {
  position: sticky;
  top: 100px;
}

.news-sidebar-card {
  background: white;
  border-radius: 20px;
  padding: 2rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  margin-bottom: 2rem;
}

body.dark-mode .news-sidebar-card {
  background: var(--dark-card);
}

.news-sidebar-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--text-dark);
  position: relative;
  padding-left: 15px;
}

body.dark-mode .news-sidebar-title {
  color: white;
}

.news-sidebar-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 70%;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  border-radius: 2px;
}

.related-news-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  cursor: pointer;
}

body.dark-mode .related-news-item {
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

.related-news-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.related-news-item:hover {
  transform: translateX(5px);
}

.related-news-item img {
  width: 90px;
  height: 90px;
  border-radius: 12px;
  object-fit: cover;
  flex-shrink: 0;
}

.related-news-info h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-dark);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

body.dark-mode .related-news-info h4 {
  color: white;
}

.related-news-info p {
  font-size: 0.85rem;
  color: var(--text-light);
  margin: 0;
}

body.dark-mode .related-news-info p {
  color: #94a3b8;
}

/* 响应式优化 */
@media (max-width: 992px) {
  .news-sidebar {
    position: relative;
    top: 0;
    margin-top: 3rem;
  }

  .news-detail-title {
    font-size: 2rem;
  }

  .news-detail-content {
    font-size: 1.05rem;
  }
}

@media (max-width: 768px) {
  .news-detail-article {
    padding: 2rem 1.5rem;
  }

  .news-detail-title {
    font-size: 1.8rem;
  }

  .news-detail-meta {
    flex-direction: column;
    gap: 0.8rem;
  }

  .news-detail-content {
    font-size: 1rem;
  }

  .news-detail-content .lead {
    font-size: 1.1rem;
    padding: 1rem;
  }

  .news-detail-content h2 {
    font-size: 1.5rem;
  }

  .news-image-grid {
    grid-template-columns: 1fr;
  }

  .news-image-grid img {
    height: 200px;
  }

  .share-buttons {
    flex-direction: column;
  }

  .share-btn {
    justify-content: center;
  }
}

@media (max-width: 576px) {
  .news-detail-article {
    padding: 1.5rem 1rem;
  }

  .news-detail-title {
    font-size: 1.5rem;
  }

  .news-detail-content h2 {
    font-size: 1.3rem;
    padding-left: 15px;
  }

  .news-blockquote {
    padding: 1.5rem;
    font-size: 1.05rem;
  }

  .related-news-item img {
    width: 70px;
    height: 70px;
  }
}
/* ==================== 服务融合卡片（图片+内容一体） ==================== */
.service-split {
  display: grid;
  grid-template-columns: 1.1fr 1.4fr;
  border-radius: 24px;
  overflow: hidden;
  background: #ffffff;
  box-shadow: 0 12px 40px rgba(15, 23, 42, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.12);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-split:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 60px rgba(15, 23, 42, 0.18);
}

body.dark-mode .service-split {
  background: var(--dark-card);
  border-color: rgba(148, 163, 184, 0.12);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.35);
}

.service-media {
  position: relative;
  min-height: 320px;
}

.service-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1);
  transition: transform 0.6s ease;
}

.service-split:hover .service-media img {
  transform: scale(1.06);
}

.service-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient( to right, rgba(15, 23, 42, 0.35), rgba(0, 0, 0, 0) 40% );
}

.service-right .service-media::after {
  background: linear-gradient( to left, rgba(15, 23, 42, 0.35), rgba(0, 0, 0, 0) 40% );
}

.service-body {
  padding: 2.2rem 2.2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.service-body h2 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 0.75rem;
}

body.dark-mode .service-body h2 { color: #ffffff; }

.service-body p.lead,
.service-body p { color: var(--text-light); }
body.dark-mode .service-body p { color: #cbd5e1; }

.service-icon-large {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  color: #fff;
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
  font-size: 1.5rem;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 0;
  color: var(--text-light);
}

.feature-list li i { color: var(--primary-color); }

@media (max-width: 992px) {
  .service-split { grid-template-columns: 1fr; }
  .service-media { min-height: 220px; }
  .service-body { padding: 1.5rem; }
}

/* ==================== 服务时间轴（非卡片式） ==================== */
.service-timeline { position: relative; }
.service-timeline::before{
  content:""; position:absolute; top:0; bottom:0; left:50%; width:2px;
  background: linear-gradient(180deg, rgba(99,102,241,.2), rgba(236,72,153,.2));
  transform: translateX(-1px);
}
@media (max-width: 992px){ .service-timeline::before{ display:none; } }

.service-row{
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: 4rem;
}
.service-row:last-child{ margin-bottom: 0; }
.service-row::before{
  content:""; position:absolute; left:50%; top:50%; transform: translate(-50%,-50%);
  width:14px; height:14px; border-radius:50%;
  background: radial-gradient(circle, #fff 35%, var(--primary-color) 36%, var(--accent-color) 100%);
  border: 3px solid #fff; box-shadow: 0 6px 16px rgba(15,23,42,.15);
}
body.dark-mode .service-row::before{ border-color: var(--dark-card); }

.service-illustration{ position:relative; min-height: 320px; border-radius: 24px; overflow:hidden; }
.service-illustration img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; transform: scale(1.02); transition: transform .6s ease, clip-path .6s ease; clip-path: polygon(0 0, 100% 0, 86% 100%, 0% 100%); }
.service-illustration::after{ content:""; position:absolute; inset:0; background: linear-gradient(90deg, rgba(15,23,42,.28), rgba(0,0,0,0) 40%); pointer-events:none; }
.service-illustration:hover img{ transform: scale(1.08); }

.is-reverse .service-illustration{ order:2; }
.is-reverse .service-content{ order:1; }
.is-reverse .service-illustration img{ clip-path: polygon(14% 0, 100% 0, 100% 100%, 0 100%); }
.is-reverse .service-illustration::after{ background: linear-gradient(270deg, rgba(15,23,42,.28), rgba(0,0,0,0) 40%); }

.service-content{ padding: .5rem 0; }
.service-heading{ display:flex; align-items:center; gap: .8rem; margin-bottom: .5rem; }
.service-heading h2{ margin:0; font-weight: 800; font-size: 1.9rem; color: var(--text-dark); }
body.dark-mode .service-heading h2{ color:#fff; }
.service-heading .service-icon-large{ margin-bottom:0; }
.service-content p{ color: var(--text-light); margin-bottom: 1rem; }
body.dark-mode .service-content p{ color:#cbd5e1; }
.service-content .feature-list li{ padding:.4rem 0; }

@media (max-width: 992px){
  .service-row{ grid-template-columns: 1fr; gap: 1.5rem; margin-bottom: 3rem; }
  .service-illustration{ min-height: 220px; }
}

/* ==================== 创意跑马灯（Marquee） ==================== */
.marquee-wrap {
  position: relative;
  overflow: hidden;
  border-radius: 14px;
  border: 1px solid rgba(99,102,241,0.15);
  background:
    linear-gradient(135deg, rgba(99,102,241,0.08), rgba(236,72,153,0.08));
}

.marquee-track {
  display: flex;
  gap: 2rem;
  align-items: center;
  white-space: nowrap;
  padding: 1rem 1.25rem;
  animation: marqueeScroll 28s linear infinite;
}

.marquee-wrap:hover .marquee-track { animation-play-state: paused; }

@keyframes marqueeScroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.badge-key {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .55rem .9rem;
  color: #0f172a;
  background: #fff;
  border-radius: 999px;
  border: 1px solid rgba(15,23,42,.08);
  box-shadow: 0 6px 20px rgba(15,23,42,.08);
  font-weight: 600;
}
body.dark-mode .badge-key { color: #e2e8f0; background: #0b1220; border-color: rgba(148,163,184,.18); }
.badge-key i { color: var(--primary-color); }

/* ==================== Tilt 卡片（鼠标跟随 3D 倾斜） ==================== */
.tilt-card {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  will-change: transform;
  transform-style: preserve-3d;
  transition: transform .2s ease, box-shadow .2s ease;
  box-shadow: 0 12px 30px rgba(15,23,42,.12);
}
.tilt-card::after{
  /* 高光层 */
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(600px 200px at var(--mx,50%) var(--my,0%), rgba(255,255,255,.18), transparent 40%);
  pointer-events: none;
  opacity: .6;
}
body.dark-mode .tilt-card{ box-shadow: 0 16px 36px rgba(0,0,0,.45); }
.tilt-card:hover{ box-shadow: 0 18px 60px rgba(15,23,42,.2); }

/* ==================== 斜切特色区块 ==================== */
.feature-angled {
  position: relative;
  padding: 80px 0;
  background: linear-gradient(135deg, #f8f9ff 0%, #eef2ff 100%);
}
body.dark-mode .feature-angled { background: linear-gradient(135deg, #0f172a 0%, #111827 100%); }
.feature-angled::before,
.feature-angled::after{
  content: ""; position: absolute; left:0; right:0; height:80px; z-index:0;
  background: inherit;
}
.feature-angled::before{ top:-40px; transform: skewY(-4deg); }
.feature-angled::after{ bottom:-40px; transform: skewY(4deg); }
.feature-angled .container{ position: relative; z-index:1; }

/* 关键词徽章组的栅格和间距微调 */
.key-grid{ display:flex; flex-wrap:wrap; gap:1rem; justify-content:center; }

/* 特色倾斜卡片内容（彩色渐变） */
.feature-card{
  background: linear-gradient(135deg, #6366f1 0%, #ec4899 100%);
  color:#fff;
  padding:2rem;
  border-radius: 20px;
}
.feature-card h3{ font-weight:800; margin-bottom: .5rem; }
.feature-card p{ opacity:.95; }
.feature-card .feature-icon{ font-size:2rem; margin-bottom: .75rem; }
